Answer:
A It cannot be determined from the information given.
Step-by-step explanation:
Answer:
its A
Step-by-step explanation:
trust
If fence poists are to be placed in a row 7 feet apart, how many posts are needed for 210 feet of fence?
posts
Answer:
31
Step-by-step explanation:
210 ft ÷ 7 ft = 30
There are 30 7-ft lengths of fence.
Think of putting a post at the end of each 7-ft length. That means you need 30 posts. Now you must add 1 post for the beginning.
Answer: 31
Use the graph to write a linear function that relates y to x
Answer:
y = [tex]\frac{4}{3} x + 2[/tex]
Answer:
Y=4/3x+2
Step-by-step explanation:
The slope is 4/3 because i counted 3 spaces to the right and 4 spaces up which is 4/3 and the starting point is 2 which is where it crosses on the y intercept hope this helps! :)
The band director at a high school wants to know what percentage of parents supports a decrease in the budget for fine arts. Because many parents attend the school’s annual musical, the director surveys the first 30 parents who arrive at the show. Explain why this sampling method is biased. Is the proportion of parents in the sample who support the decrease likely greater than or less than the proportion of all parents in the school who support the decrease?
Using sampling concepts, it is found that the sampled is biased because only parents who attend the school's musical show are surveyed, hence they are not very likely to support the decrease, and the population proportion should be greater than the one found in the show.
How are samples classified?Samples may be classified as:
Convenient: Drawn from a conveniently available pool.Random: All the options into a hat and drawn some of them.Systematic: Every kth element is taken. Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.A sample has to take into account all aspects of the population, otherwise it is biased. In this problem, either people support the decrease, or they do not. Only people that went to the show were surveyed, that is, people who are unlikely to support the decrease, which generates bias, as the population proportion should be greater than the one found in the show.
More can be learned about sampling concepts at https://brainly.com/question/25122507
Select the correct answer. What is the vertex of the parabola given by y = -(x − 2)^2 − 1?
Answer:
vertex: -2,1
Step-by-step explanation:
You need to graph it.
is this correct or it needs any fixing
What is another way of saying that Janelle can ride her bike at a rate of 15 kilometers per hour?
Answer:
Janelle can ride her bike at a rate of 9.32 miles per hour
Step-by-step explanation:
15 kilometers is 9.32 miles
117,23.4,4.68… t(n)=(term0)(r)^n what is the equation?
Answer:
Step-by-step explanation:
PLS HELP ME ASAP I WILL GIVE YOU 43 POINTS
The diagram shows 3/4 of a fraction strip shaded. Mary erases some of the shadings to show 5/8. Explain the steps she took to shade 5/8 of the fraction strip.
Answer:
a 8 parts b 8 3|4 = 3×2|4×2=b|8
Step-by-step explanation:
Dave buys a coat for £20, a hat for £15 and a pair of gloves for £5.
Later, he sells the coat at 50% profit. He sells the hat for £18 but has to sell the gloves at a 20% loss.
What is his overall percentage profit?
Answer:
30%
Step-by-step explanation:
Purchases:
Coat £20
Hat £15
Gloves for £5
Total amount of purchases: £20 + £15 + £5 = £40
Sales:
Coat at 50% profit: 150% × £20 = 1.5 × £20 = £30
Hat: £18
Gloves at a 20% loss: 80% of £5 = £4
Total amount of sales: £30 + £18 + £4 = £52
Amount of profit: £52 - £40 = £12
Percent of profit: £12 / £40 × 100% = 30%
how many triangles??
what should be subtracted from
[tex] {a}^{2} - 7ab \: + {3b}^{2} [/tex]
to get
[tex]( - 4 {a}^{2} + 6ab \: + 3 {b}^{2} )[/tex]
?
-5a²+13ab should be subtracted.
Step-by-step explanation:-Based on the given conditions, formulate,
[tex]→- {a}^{2} - 4 {a}^{2} + 13ab[/tex]
[tex]→-({a}^{2} - 4 {a}^{2}) + 13ab[/tex]
Taking the coefficients or numbers, we get,
[tex]→(- 1 - 4) {a}^{2} + 13ab[/tex]
[tex]→ - 5 {a}^{2} + 13ab[/tex]
Given :
What should be subtracted from a² – 7ab + 3b² to get – 4a² + 6ab + 3b² ?
Solution :
Let the required expression to be subtracted be x
⇢ a² – 7ab + 3b² – x = – 4a² + 6ab + 3b²
⇢ a² – 7ab + 3b² – (– 4a² + 6ab + 3b²) = x
⇢ a² – 7ab + 3b² + 4a² – 6ab – 3b² = x
Combining the like terms :
⇢ a² + 4a² – 7ab – 6ab + 3b² – 3b² = x
⇢ 5a² – 13ab = x
⇢ x = 5a² – 13ab
Therefore,
5a² – 13ab should be subtracted from a² – 7ab + 3b² to get – 4a² + 6ab + 3b².
help mee its due today at 3:00am
Answer:
Here is the answer......hope u understand...
find the value of 16 to the power of 3/4
Answer:
8
Step-by-step explanation:
If we write this as an expression it looks like [tex]16^{\frac{3}{4} }[/tex]
Multiply the top number of the fraction by itself to find its square. Write the result and place the fraction line below it.
Help!!!! ( this is i-ready )
Answer:
Take the values in the box:
IQTR = 16 - 7
= 9
The diameter of a circle measures 7 5/6 inches. What is the radius of the circle? Enter your answer as a mixed number in the box.
The radius of the circle expressed as a mixed number is: [tex]3\frac{11}{12}[/tex] inches.
What is the Radius of a Circle?Radius of a circle = half the measure of the diameter of a circle.
Given:
diameter of a circle = [tex]7\frac{5}{6}[/tex] inches
Therefore:
Radius of the circle = 1/2([tex]7\frac{5}{6}[/tex])
= 1/2(47/6)
= (1 × 47)/(2 × 6)
= 47/12
= [tex]3\frac{11}{12}[/tex] inches.
Therefore, the radius of the circle expressed as a mixed number is: [tex]3\frac{11}{12}[/tex] inches.
Learn more about radius of a circle on:
https://brainly.com/question/24375372
please answer quickly attachment is under this little message
Answer:
315 dm3
Step-by-step explanation:
[tex]V=\frac{lwh}{3} \\\V=\frac{9*7*15}{3} \\V=\frac{945}{3} \\V=315[/tex]
HELP ME PLEASE!! the inequality X <38 can be used to represent how much water is in a swimming pool. where X is the volume of water in the pool in cubic meters. Which of these statement BEST describes how much water is in the swimming pool?
Answer:
x < 38 represents that there is less than 38 cubic meters of water in the pool.
Step-by-step explanation:
" < " sign represents less than.
" > " sign represents more than.
" ≥ " sign represents at least or more than.
" ≤ "sign represents at least or less than.
Answer:
B
Step-by-step explanation:
The sign < means less than
Given x is the volume of the pool
Therefore, x < 38 means the volume of the pool is less than 38 m³
For information, the statements written as inequalities would be
A: x > 38
B: x < 38
C: x ≥ 38
D: x ≤ 38
8 yards converted into feet?
Answer:
24 feet
Step-by-step explanation:
a yard is 3 feet
8 yards is
8 × 3
24 feet
Please help I will give brainliest.
Step-by-step explanation:
for x = 2
a = 500 × (3/5)²
for x = 4
b = 500 × (3/5)⁴ = 500×(3/5)²×(3/5)²
so,
a/b = (500 × (3/5)²) / (500 × (3/5)² × (3/5)²) =
= 1/(3/5)² = 1/(9/25) = 25/9 = 2.777777778...
find x using Pythagoras theorem
Answer:
x = 3
Step-by-step explanation:
The Pythagorean theorem tells you the sum of squares of the legs is equal to the square of the hypotenuse. In this geometry, a radius from the circle center to point T is length x, and is one leg of the right triangle.
x^2 +4^2 = (x +2)^2
x^2 +16 = x^2 +4x +4 . . . . . expand
12 = 4x . . . . . . . . . . . . . subtract (x^2 +4)
3 = x . . . . . . . divide by 4
The radius of the circle is 3 cm.
-3x - 4 = -5y -8 y-intercept and x-intercept
Answer:
y-intercept: -0.8
x-intercept: 1.333
Can someone help me please and have an explanation :)
Answer:
ok so lets find the difference on the table
from 5 to 8 is goes up 250.5(668-417.5)
so that means 3 tickets goes 250.5 so lets divide by 3
250.5 divide by 3=83.5 per ticket
83.5*6=501
501
Hope This Helps!!!
Answer:
Equation : $83.50x = Cost of the tickets
(where x = number of tickets)
Cost of 6 tickets : $501
Step-by-step explanation:
I'm not sure if this is the way they want you to do it, but what I did is :
1) Solve a proportion to figure out the cost of 1 ticket
5/417.50 = 1/x
5x = 417.50(1)
5x/5 = 417.50/5
x = 83.50
So, the cost of 1 ticket is $83.50
2) Create an equation
If x equals the number of tickets :
83.50x = Cost of the tickets
3) Solve for 6 tickets
83.50(6) = Cost of the tickets
501 = Cost of the tickets
Substitute x for the number of tickets, which is 6 and you'll get $501 :)
How would you solve y+1= -4x ? with a step by step solution
Answer:
There are an infinite number of solutions.
Step-by-step explanation:
An equation with 2 unknowns give an infinite amount of solutions, here is just one of the many:
Let y= 3 ( y can be any number)
(3) + 1 = -4x
4 = -4x
x = -4/4
x= -1
(x;y) = (-1;3)
Generally x and y can be any number, just let x or y be any number, then find the other variable based on the value of the number u assumed.
What is the value of x in the equation 2. 5 minus 0. 25 x = negative 3? –22 –1. 1 1. 1 22.
Write the point slope form of the equation of the line through the given points: (4,-1) and (-3,1)
[tex](\stackrel{x_1}{4}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{-3}~,~\stackrel{y_2}{1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{1}-\stackrel{y1}{(-1)}}}{\underset{run} {\underset{x_2}{-3}-\underset{x_1}{4}}}\implies \cfrac{1+1}{-7}\implies -\cfrac{2}{7}[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-1)}=\stackrel{m}{-\cfrac{2}{7}}(x-\stackrel{x_1}{4})\implies y+1=-\cfrac{2}{7}(x-4) \\\\\\ y+1=-\cfrac{2}{7}x+\cfrac{8}{7}\implies y=-\cfrac{2}{7}x+\cfrac{8}{7}-1\implies y=-\cfrac{2}{7}x+\cfrac{1}{7}[/tex]
a laptop computer is purchased for $1800. after each year the resale value decreases by 35%. what will the resale value be after 5 years? round to nearest dollar.
Answer:
1800-35%=1170
1170-35%=760,5
760,5-35%=494,325
494,325-35%=321,31
311,31-35%=208,85
after round it is 209
Answer:
$209
Step-by-step explanation:
1800-(1800*.35)=1170
1170-(1170*.35)=760.5
760.5-(760.5*.35)=494.325
494.325-(494.325*.35)=321.31125
321.31125-(321.31125*.35)=208.8523125
$209 after 5 years
Hope this helps
i need help on 10 please
Angle 1 = 54.
Step-by-step explanation:
54+36= 90 or 90-36=54
Please factor 4n + 4 x 2
Answer:
4 ( n + 2 )
[tex]4(n + 2)[/tex]
A base is labeled on the triangle below. B. C 7 * base Which line segment shows the height that corresponds to the given base of the triangle?
Answer: A
Step-by-step explanation:
Looks like A, since it's the altitude.
Write and solve a system of equations made up of Aiden’s and Natalie’s lines of best fit that they can use to find the catapult arm length that they could both use to launch their tennis balls the same distance. What is the solution to the system?
Type the correct answer in the box. Round each number to the nearest tenth.
( , )
The solution to the given system is (-30, 80)
Line of best fit.The solution to the given system of the equation of line is the point where both lines intersect.
From the given diagram, we can see that the lines intersect at a coordinate point (x, y)
The location of these coordinate point on the xy-plane is (-30, 80). Hence the solution to the given system is (-30, 80)
Learn more eon system of equation here:https://brainly.com/question/14323743
Answer:
The answer is (30,90)
Step-by-step explanation:
the reason is because it says to round to the nearest tenth the numbers not rounded is 32.6 and 86.6